WEBVTT 00:00:06.025 --> 00:00:13.698 Welcome to the Why Lab with Eirini, Nefeli and Pico, where we observe, ask and 00:00:13.698 --> 00:00:14.210 discover! 00:00:16.025 --> 00:00:20.550 Ready! I've made the world's most orange collection! 00:00:22.025 --> 00:00:27.350 An orange, a pencil and your sock? Why together? 00:00:28.025 --> 00:00:35.270 I heard that oranges have vitamin C. So… everything orange has vitamin C! 00:00:36.020 --> 00:00:37.910 Even my orange sock? 00:00:40.025 --> 00:00:47.086 We can test that idea. First, let's separate our food… from all the other 00:00:47.086 --> 00:00:47.590 things. 00:00:55.025 --> 00:01:00.739 Let's start with a question. Can a food have vitamin C even if it isn't 00:01:00.739 --> 00:01:05.310 orange? Our first idea is called a hypothesis. Then we test it! 00:01:08.025 --> 00:01:13.639 I think it can, and I have brought something red and something green for us to 00:01:13.639 --> 00:01:13.990 explore! 00:01:15.114 --> 00:01:20.250 I'm almost sure about orange. But… I'll listen! 00:01:21.025 --> 00:01:23.310 Well… what do you think? 00:01:31.025 --> 00:01:35.150 A pepper! Strawberries! And a kiwi! 00:01:36.025 --> 00:01:43.030 The kiwi is brown outside. But it's green inside! Now I'm confused. 00:01:44.025 --> 00:01:50.367 All four of these foods contain vitamin C. They have different colours, 00:01:50.367 --> 00:01:53.010 different shapes and different flavours. 00:01:55.150 --> 00:01:58.670 So vitamin C has lots of friends! 00:02:00.025 --> 00:02:03.750 A colourful bunch of friends! No socks. 00:02:11.025 --> 00:02:16.040 Let me see the vitamin! Could it be hiding behind this little dimple? 00:02:17.025 --> 00:02:22.928 We can't see it that way. The magnifying glass helps us look at the surface. 00:02:22.928 --> 00:02:28.437 To find out what's in a food, we need other information and the right 00:02:28.437 --> 00:02:28.830 measurements. 00:02:30.245 --> 00:02:33.830 So what we see… isn't the same as what's inside! 00:02:35.025 --> 00:02:39.230 My magnifying glass cannot tell me everything. 00:02:46.025 --> 00:02:50.227 Scientists study different foods and carefully record their measurements, so 00:02:50.227 --> 00:02:55.270 we read reliable sources and check what the information actually tells us. 00:02:55.865 --> 00:02:58.470 Guessing from the colour isn't enough. 00:03:00.250 --> 00:03:03.350 What if our first idea is mistaken? 00:03:04.025 --> 00:03:07.350 Correcting our ideas helps us learn! 00:03:08.025 --> 00:03:10.550 So… I have learned something new! 00:03:12.025 --> 00:03:14.550 Why is vitamin C important? 00:03:16.025 --> 00:03:21.628 Vitamin C has many roles, including helping our bodies make collagen, a 00:03:21.628 --> 00:03:25.830 material that supports body parts such as our skin. 00:03:27.025 --> 00:03:30.030 Like these ribbons that make a network? 00:03:31.025 --> 00:03:37.254 The ribbons help us imagine it, but our bodies are more complex and need many 00:03:37.254 --> 00:03:38.500 things working together. 00:03:40.150 --> 00:03:42.390 Just like our lab friends! 00:03:49.815 --> 00:03:55.430 What if I fill this whole notebook… with one enormous orange? 00:03:56.025 --> 00:03:59.270 But what happens to all our other food friends? 00:04:00.025 --> 00:04:05.585 Every food has its own mix of ingredients. We need variety in what we eat. 00:04:07.025 --> 00:04:12.350 My notebook has a better idea… lots and lots of little drawings! 00:04:19.025 --> 00:04:26.420 Which food contains vitamin C: the orange, the pepper, or both? 00:04:34.025 --> 00:04:35.750 Yes, both of them! 00:04:38.025 --> 00:04:43.326 Foods can have different colours… and still contain the same nutrient, like 00:04:43.326 --> 00:04:44.210 vitamin C. 00:04:45.025 --> 00:04:49.310 Look, here's our discovery… written in my notebook! 00:04:50.025 --> 00:04:56.390 At first I thought something else. Now I feel… a bit more like a researcher! 00:04:57.100 --> 00:04:59.150 Because you found the answer? 00:05:01.025 --> 00:05:06.030 You also asked questions, checked the evidence and changed your mind. 00:05:07.025 --> 00:05:09.470 Changing my mind feels good! 00:05:11.025 --> 00:05:14.270 Tomorrow, we can explore a new question. 00:05:15.025 --> 00:05:21.439 Now we have a mission for you. With a grown-up, remember two foods we saw 00:05:21.439 --> 00:05:23.150 today and draw them. 00:05:24.025 --> 00:05:27.190 Together… in one paper basket! 00:05:28.090 --> 00:05:34.630 My kiwi looks like a potato… so I'll draw a little label to explain it. 00:05:35.025 --> 00:05:40.992 If you want to explore a food in the kitchen, ask your grown-up for help 00:05:40.992 --> 00:05:41.390 first. 00:05:42.253 --> 00:05:45.590 And tell each other: what surprised me today? 00:05:52.025 --> 00:05:55.830 My orange collection… has a new name! 00:05:57.025 --> 00:05:58.510 What name? 00:06:01.070 --> 00:06:02.670 The colourful bunch! 00:06:05.250 --> 00:06:09.630 Your own discovery comes next… see you at our next why! 00:06:10.025 --> 00:06:14.950 I observe the world, I ask my questions, and I discover!